DIN EN ISO 9888-1999 水质.含水介质中有机化合物最大需氧生物降解性的评定.静态试验(Zahn-Weuens法)
Water quality - Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium - Static test (Zahn-Wellens method) (ISO 9888:1999); German version EN ISO 9888:1999
The document specifies a method for the evaluation of the elimination and the ultimate biodegradability of organic compounds at a given concentration by aerobic micro-organisms. The method can also be used to determine the elimination and biodegradability of organic compounds in waste water.